Sharpening blades on a mowing deck -- easy?: Kubota Review  -- Kubota Tractors Discussion Forum and Review Sharpening blades on a mowing deck -- easy?: Kubota Review -- Kubota Tractors Discussion Forum

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 05-30-2006, 01:01 Post: 130011
BX23Fan



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 Sharpening blades on a mowing deck -- easy?

I have a 60" mowing deck for my BX-23, but haven't used it yet since my lawn is still a work in progress. This sucker is pretty heavy to lift/tilt by hand, which makes me wonder what the easiest way is to sharpen the blades. The manual says nothing about how to go about this. What's the easiest way to remove and sharpen the blades?






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 05-30-2006, 05:18 Post: 130013
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 Sharpening blades on a mowing deck -- easy?

I have a 60 inch as well and I made a pyramid stand out of 2 x 4 s and I push the back of the deck up to the stand and at the base is a shelf, I life the deck up onto the shelf and then tilt the entire deck against the stand. It holds it and prevens the deck from falling. I can clean, remove and sharpen blades do whatever and then it is just lower the front of the deck back onto the ground and then life the back of the deckoff of the shelf and I am done.






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 05-30-2006, 06:28 Post: 130014
DennisCTB

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 Sharpening blades on a mowing deck -- easy?

I use the storage stands from Larry' mower axle. See the TP review in the link below. Great winter storage idea and makes maintenance easy. I only sharpen blades annually though.

Check the TP archives, we have had many other approaches to blade sharpening as well.






Link:   Larry MowerAxle Review 

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 05-30-2006, 06:59 Post: 130015
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 Sharpening blades on a mowing deck -- easy?

BX fan,

I have used ramps for autos but for my ztr found the hyd sissor jack the best option to access the blades.

GD, GB






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 05-30-2006, 09:13 Post: 130031
Murf

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 Sharpening blades on a mowing deck -- easy?

As long as you're limber enough to get down on the floor alright, a MMM generally has enough lift height to get the deck up off the ground more than enough to spin the blades off.

Dismounting the deck just to sharpen is a lot of work, but if you have to take it off anyways that's a different story.

Best of luck.






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 05-30-2006, 11:13 Post: 130037
AnnBrush



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 Sharpening blades on a mowing deck -- easy?

How do y'all sharpen blades, any truth to the don't heat the blade using a grinder deal (tempering and all that). Who uses a file anyway?






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 05-30-2006, 11:24 Post: 130039
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 Sharpening blades on a mowing deck -- easy?

AnnBush,

I use a 4 1/2 inch hand held grinder with the grinder wheel at the angle of the sharpen edge. It leaves it smoother that using the edge of any size wheel for me.

I have a 6 inch belt sander with proper belt it does the best job.

Neither gets the blade very hot, but I don't run blades until they are rounded either.

GD, GB






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 05-30-2006, 11:26 Post: 130041
kthompson



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 Sharpening blades on a mowing deck -- easy?

Murf,

"As long as you're limber enough to get down on the floor alright"

Amazing isn't it how far the floor can move to. There there is getting back up part. Also remembering all tools you will need while there and then all the jobs you need to do while there.






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 05-30-2006, 11:34 Post: 130042
Murf

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 Sharpening blades on a mowing deck -- easy?

There is some truth to the theory that overheating will change the temper of the metal, however, you also have to bear in mind what it is this material is doing also.

It's not brain surgery we're performing with this edge.

Having said that, and the fact that we sharpen a LOT of blades, both rotary and reels, we use a water cooled grinder (the bottom of the grinding wheel runs through a water bath like a tile saw), however the other big bonus to that is there is little if any dust or mess either.

The reality of the physics puts it in better perspective, the blades spin at the same speed as the motor, about 3,000 rpm. Since an average size for a blade is say 20" that is about a 63" circle, 3,000 times a minute or 189,000" per minute.

So the tip is moving about 3,150" or 262'6" a second.

At that speed nearly anything sharper than a Lousville Slugger will cut just fine!

Best of luck.






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 05-30-2006, 11:49 Post: 130043
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 Sharpening blades on a mowing deck -- easy?

Murf,

Since an average size for a blade is say 20" that is about a 63" circle, 3,000 times a minute or 189,000" per minute.

How do you go from the 20" blade to the 63" circle? Does not a blade cut a circle the same diameter as it's length?

On the tip speed, you hit right what Bushhog says my RFM is running.






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Discussion Boards > Active Subjects > Messages as Posted > Kubota Review Forum

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